chore: post release Cargo.toml fixes (#2963)

tokio-macros/Cargo.toml

@@ -18,7 +18,6 @@ description = """
 Tokio's proc macros.
 """
 categories = ["asynchronous"]
-publish = false
 
 [lib]
 proc-macro = true

tokio-test/Cargo.toml

@@ -18,7 +18,6 @@ description = """
 Testing utilities for Tokio- and futures-based code
 """
 categories = ["asynchronous", "testing"]
-publish = false
 
 [dependencies]
 tokio = { version = "0.3.0", path = "../tokio", features = ["rt", "stream", "sync", "time", "test-util"] }

tokio-util/Cargo.toml

@@ -18,7 +18,6 @@ description = """
 Additional utilities for working with Tokio.
 """
 categories = ["asynchronous"]
-publish = false
 
 [features]
 # No features on by default